<?php
final class MySQL {
  private $link;

  public function __construct($hostname, $username, $password, $database) {
    if (!$this->link = mysql_connect($hostname, $username, $password)) {
      trigger_error('Error: Could not make a database link using ' . $username . '@' . $hostname);
    }

    if (!mysql_select_db($database, $this->link)) {
      trigger_error('Error: Could not connect to database ' . $database);
    }

    mysql_query("SET NAMES 'utf8'", $this->link);
    mysql_query("SET CHARACTER SET utf8", $this->link);
    mysql_query("SET CHARACTER_SET_CONNECTION=utf8", $this->link);
    mysql_query("SET SQL_MODE = ''", $this->link);
  }

  public function query($sql) {
    	
    require_once(DIR_SYSTEM . 'library/debug.php');
    DebugClass::debug($sql);
     
    $resource = mysql_query($sql, $this->link);

    if ($resource) {
      if (is_resource($resource)) {
        $i = 0;
         
        $data = array();

        while ($result = mysql_fetch_assoc($resource)) {
          $data[$i] = $result;
           
          $i++;
        }

        mysql_free_result($resource);

        $query = new stdClass();
        $query->row = isset($data[0]) ? $data[0] : array();
        $query->rows = $data;
        $query->num_rows = $i;

        unset($data);

        return $query;
    		} else {
    		  return true;
    		}
    } else {
      trigger_error('Error: ' . mysql_error($this->link) . '<br />Error No: ' . mysql_errno($this->link) . '<br />' . $sql);
      exit();
    }
  }

  public function escape($value) {
    return mysql_real_escape_string($value, $this->link);
  }

  public function countAffected() {
    return mysql_affected_rows($this->link);
  }

  public function getLastId() {
    return mysql_insert_id($this->link);
  }

  public function __destruct() {
    mysql_close($this->link);
  }
}
?>